Conveyer.



w. s. AYRES.

CONVEYER. APPLICATION FILED FEB. 24, 1909.

Patented Apr. 20, 1915.

3 SHEETS-SHEET 1.

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attomnugo w. s. AYRES.

CONVEYER.

APPLlCATlON mgu FEB. 24. 1909.

Patnted Apr. 20, 1915.

3 SHEBTBSHEET 2.

w. s, AYRES. CONVEYER.

I APPLICATION FILED FEB- 24. I909.

Patented Apr. '20, 1915.

3 SHEETS-SHEET 3.

lmnnkoz Q Vitnmou WALLACE S. AYRES, 0F HAZLETON, PENNSYLVANIA.

CONVEYER.

Specification of Letters Patent.

Application filed February 24, 1909. Serial No. 479,709.

This invention relates to conveyers, and

especially to conveyers adapted to serve as separating floors for separating coal from slate and other extraneous matter, although not limited to such use and has for an object to provide a sprocket chain of new and improved form.

A further object ..of the invention is to ,providea conveyer with a sprocket chain of improved form anda slat or strip of improved form which when associated with plther similar slats form a substantially plane oor.

WVith these'and other objects in view, the invention comprises certain novel' constructions, combinations and arrangements of parts, as will be hereinafter fuliy described and claimed.

In the drawings: Figure 1, is a view in side elevation of a conventional sprocket wheel with the improved sprocket chain shown associated therewith, and oneem bodiment of the strip employed as a traveling floor, Fig. 2, is a view similar to Fig. 1,

showing a slightly different embodiment of the strip. Fig. .3, is a view similar to Figs.

1 and 2 showing. still another slightly dif-a ferent embodiment of the strip. Fig: is a view of oneof the links of the sprocket chain in top plan, Fig. 5 is-alongitudinal sectional View of one of the links as taken on line 5-5. Fig. 4. Fig.6, is a view of one of the links showing in end elevation the strip as employed in Fig. 1. Fig. 7, is a view in end elevation of a link'and strip, showing the strip built up. Fig. 8 is a broken top plan view of oneof the strips.

Like characters of reference indicate similar parts throughout the several views.

The conveyer forming. the subject matter of the present application is adapted, particularly for use as a traveling "floor in the mechanism for separating coal and slate, such for instance, as the fioor shown in Patexit #7 98,385, granted to this applicant Ausprockets. g

Shown conventionally in the drawings,

gust29, 1905, although not limited to the use mentioned in such patent, but applicable to other uses requiring a substantially plane fioor surface moving upon rollers or are sprockets 10,- adapted to carry the im- Patented Apr. 20, 1915,,

proved co'nveyerxand with links shownras a whole at 11, adapted for coaction with such sprocket. The links 11, comprise side pieces 12, joined at one end by a sleeve 13, and

provided at the opposite end with openings 14, proportioned to receive a' rivet or pin 15 which also extends through the sleeve 13, and connects the several links in series.

The pin 15 1S held in position by any ap-- proved means as cotter pin 16 shown at Fig. 4 and the side piecesv l2'which converge toward the sleeve 13, are provided with ribs or extensions 17 forming bearing members adapted to slide upon surfacing bars as 18, and to resist consequent wear.

The link is provided at its upper side with a plate-like 'portion, 19, upon which the strips forming the surface of the'floor are secured in any approved manner as by riv-' ets 20 throughopenings 21, in said platelike portion 19. Sleeve 13 and plate portion 19 are connected by a web portion 19 which serves to stiffen the link and provide direct pull or draft between the pins and the strip, independent of the side members.

The relative-position of the sleeves 13 the sides 12 and the plate-like portion 19, form in the underside of each link 'a recess, proportioned to receive one of the teeth as 22 of the sprocket 10',"and to entirely cover such teeth to prevent dirt lodging thereon, and thereby insuring the proper operation of the device. 4

' The strip secured to the link 11, comprises a substantiallyplane portion 23, having "one longitudinal edge beveled as at 24, and the opposite edge formed to coact with suchbevel to provide a substantially plane floor surface. I

At Figs. 1 and 6, such coacting edge is shown as provided with a down turned flange 25. At the line of curvature between the strip proper and the flange 25, a beveled corner 26 is provided, adapted, to interengage with the bevel 24 as shown in'Fig. 1, to produce a plane floor surface as shown at 27. Instead of forming the bevel 26 exactly angular as shown at Figs. 1 and 6 the'natural curvature as 28 shown at Fig. 2, maybe I integral with the strip,

' form 31, shown in employed and such curvature will co-act with the bevel 24 with a considerable degree of accuracy to produce a floor surface as shown at 29, being substantially plane.

In some instances, it is found desirable to pro v ide a strip of such structure that when the'conveyer 1s passing about the sprocket no interval will be formed between the strips. To accomplish this purpose, the edge of the strip may be bent as at 30, producing an angular portion adapted to engage and co-act with the bevel edge 24 and a'lip 31,

; struck upon such curvature that as the links pass about the sprocket 10, the lower surface of the strip will at all times be in en- 3, the latter embodiment being shown at Fig. 7. J

special function of the down-turned.

flange 25, Figs. 1 and 2, or of its modified portion 23, so that no transverse bending of the latter can'take place when the material TN to be transported is applied to its surface.

By making the portion 23 comparatively thin and reinforcing it by forming the flange 25 or 31, greater efficiency is attained and the cost is reduced.

' rality of links,

Fig. 3, is to stiffen the Whatever the formation of the strip, it is provided withopenings as 34, adapted to receive the rivets 20 and may be of any length and adapted to be secured to any approved number of sprocket chains here shown in'Fig. 8, as adapted to be secured to four sprocket chains, but it is understood that the number of sprocket chains may be increased or decreased any desired number at pleasure. v

From the foregoing description of the construction of the device it is believed that its operation will be apparent Without a description of such operation. I

I claim: In a conveyer, achain comprising a plueach composed of side memtoward one end, means for bers converging V members COIHPIISIIIg a connectingthe side. tubular endmember, a conveyer. strip, and a-.-Web portion connecting the tubular member and the plate,

and bearing devices connected with the side a plate for-supporting members having one edge substantially coincident with the lower edge ofthe side members, said devices end adjacent to the converging portions.

In testimony whereof -I- afiix my'signatur'e in presence of two witnesses.

, 'WaLLAoE s. AYa s. Witnesses: i

F. .P. GABRIo,

WILLIAM S. PowELL. I

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